Node Js

What is Node.js and how to install

Node.js is an open-source, server-side platform that is built on the V8 JavaScript engine of Google Chrome. It allows developers to use JavaScript on the server side to build scalable and fast applications. Here’s an example of creating a basic server with Node.js step-by-step:

  • Install Node.js: To use Node.js, you need to install it on your computer. You can download the installer from the official Node.js website.
  • Create a project directory: Create a new directory for your Node.js project. Open a command prompt or terminal and navigate to the directory.
  • Initialize a new Node.js project: Use the following command to initialize a new Node.js project in the directory you created:
npm init

4- Install the HTTP module: Node.js includes a built-in HTTP module that we can use to create a server. Install it using the following command:

npm install http
  1. Create a new file: Create a new file named index.js in your project directory.
  2. Require the HTTP module: Add the following code to the index.js file to require the HTTP module:
const http = require('http');

7- Create a server: Create a new server using the createServer() method of the HTTP module. The server listens to incoming requests on port 3000.

const server = http.createServer((req, res) => {
  res.writeHead(200, {'Content-Type': 'text/html'});
  res.end('Hello, World!');


8 – Run the server: Start the server by running the following command in the terminal:

node index.js
  1. Test the server: Open your web browser and navigate to http://localhost:3000/. You should see the message “Hello, World!” displayed on the page.

That’s it! You have successfully created a basic server using Node.js. From here, you can add more functionality to the server and create more complex applications using Node.js.Regenerate response

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